数据类型是______。A.字段的另一种说法 B.决定字段能包含哪类数据的设置 C.

题型:单项选择题

问题:

数据类型是______。

A.字段的另一种说法

B.决定字段能包含哪类数据的设置

C.一类数据库应用程序

D.一类用来描述Access表向导允许从中选择的字段名称

考点:计算机等级考试ACCESS二级ACCESS笔试
题型:单项选择题
阅读理解
      Birthdays are celebrated(庆祝)all over the world. Some ways to celebrate birthdays are rather similar from county to country: candles, cakes, and birthday wishes. But there are also different ways to celebrate birthdays. Here are a few:
Denmark 
A flag is flown outside a window to show that
someone who lives in that house is having a
birthday. Presents are placed around the child's
bed while he is sleeping so he will see them at
once when he wakes up.
India     
Usually Indian children wear white to school.
However, on their birthday children wear colored clothes to school and give out chocolates to everyone in the class. Their best friend helps them to do this.

Japan    
The birthday child wears new clothes to mark the special time. Certain  birthdays  are more important than others. These are the third and seventh birthdays for girls and the fifth for boys.

Holland    
The birthday child receives and especially large
present. The family also put flowers on the
birthday child's chair to make it beautiful.
1. When someone is having a birthday in Denmark, you can see _____ outside the window. 
A. flowers
B. presents    
C. a flag      
D. a chair
2. In _____flowers are put on the chair of the birthday child.    
A. Japan      
B. Denmark    
C. India  
D. Holland
3. In _____, only birthday children wear colored clothes to school.      
A. India  
B. Holland
C. Denmark    
D. Japan
4. In Japan, the birthday is more important for boys when they are _____.    
A. 15    
B. 7  
C. 5    
D. 3
5. The passage is mainly(主要) about _____.  
A. similar ways of celebrating birthdays in some countries
B. different ways of celebrating birthdays in some countries
C. children's birthdays in western countries
D. the importance of children's birthdays
题型:单项选择题

Jumping out of ___ airplane at a height of 5000 kilometers is ___ unforgettable experience.           

A.an ; a

B.an ; an

C.an ; /

D.a ; an

题型:单项选择题
解下列方程
(1)4-x=3(2-x)
(2)
1.5x
0.6
-
1.5-x
2
=0.5
题型:单项选择题

保证信息的真实性:

题型:单项选择题

FO储罐发生突沸的原因是加热蒸汽的压力温度异常升高。()

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